ADU Zoning in Pinellas County, Florida (2026)
What ADU can you build in your Pinellas County backyard?
Instant zoning report — see exactly what your zoning allows: permitted ADU types, size limits, setbacks, and lot requirements for your specific property.
Pinellas County ADU — Key Facts
- ADU up to 1,000 sq ft (750 sq ft in Coastal Storm/flood areas) — LDC §138-3210
- Owner must occupy the primary home or the ADU (affordable-housing waiver available)
- One per lot, all residential districts; exempt from density limits
Unincorporated Pinellas County Rules
*These rules apply if your address is NOT inside a specific city limit.
Pinellas County ADU Permit Process
- 1An accessory dwelling is permitted through the jurisdiction's standard building-permit / zoning-review process. Contact the local planning or building department for current requirements.
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Find Pinellas County ADU BuildersFlorida ADU Laws 2026 — What State Law Does and Doesn't Do
How §163.31771 works, and what your local government controls.
Find out what ADU you can build in your backyard
— and get a free Pinellas County ADU guide for your area.
Free report · No commitment · 60 seconds